Granted Patent
Utility
US 6,688,764 · App. 10/334,817
Method of mixing using mixing device having vanes with sloping edges
Inventor:
Ronnald B. King
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Dec 30, 2002
Inventor
Ronnald B. King
Assignee (at issue)
Site-b Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.